a {
  text-decoration: none;
  outline: none;
  color: black;
}
.dialog-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
img {
  max-width: 500px;
}
body {
  /* background-image: url('https://api.vvhan.com/api/acgimg'); */
  /*按比例缩放*/
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-color:  #f7f8fa;
}
.mt-10{
  margin-top: 10px;
}